we're working to fuel america for generations to come. our commitment has never been stronger. well, having a ton of locations doesn't hurt. and a santa to boot! [ chuckles ] right, baby. oh, sir. that is a customer. oh...sorry about that. [ male announcer ] break from the holiday stress. fedex office. >>> a bombshell announcement today on capitol hill. senator jim demint of south carolina, certainly a great champion of the tea party movement announced he's leaving the senate to become the president of one of washington's most influential conservative think tank organizations, the heritage foundation. the senator's standing by to join us live in "the situation room" in just a moment. first, let's get some background from our senior congressional correspondent dana bash joining us from capitol hill. i think it's fair to say, dana, all of us were stunned by this announcement today. >> reporter: that's right, wolf. well, senator demint had always said he was going to limit himself to two terms in the senate. but he's not even halfway through